DuckCorp Dico

Found one definition

1.                 From WordNet (r) 3.0 (2006):
                   
   
   
                   
                     
   unmarked
       adj 1: not having an identifying mark; "unmarked cards"; "an
              unmarked police car" [ant: marked]
       2: not taken into account; "his retirement was not allowed to go
          unmarked" [syn: overlooked, unmarked, unnoted]